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12044230140 = 22352330728429
BaseRepresentation
bin10110011011110010…
…00101110111111100
31011002101100021200210
423031321011313330
5144131310331030
65311045352420
7604316160405
oct131571056774
934071307623
1012044230140
115120721408
122401708710
13119c37c8c7
148238529ac
154a75aabb0
hex2cde45dfc

12044230140 has 96 divisors (see below), whose sum is σ = 35305966080. Its totient is φ = 3062036736.

The previous prime is 12044230097. The next prime is 12044230141. The reversal of 12044230140 is 4103244021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12044230141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 409446 + ... + 437874.

It is an arithmetic number, because the mean of its divisors is an integer number (367770480).

Almost surely, 212044230140 is an apocalyptic number.

12044230140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12044230140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17652983040).

12044230140 is an abundant number, since it is smaller than the sum of its proper divisors (23261735940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12044230140 is a wasteful number, since it uses less digits than its factorization.

12044230140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28771 (or 28769 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12044230140 its reverse (4103244021), we get a palindrome (16147474161).

The spelling of 12044230140 in words is "twelve billion, forty-four million, two hundred thirty thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 307 345 460 614 690 921 1228 1380 1535 1842 3070 3684 4605 6140 7061 9210 14122 18420 21183 28244 28429 35305 42366 56858 70610 84732 85287 105915 113716 141220 142145 170574 211830 284290 341148 423660 426435 568580 653867 852870 1307734 1705740 1961601 2615468 3269335 3923202 6538670 7846404 8727703 9808005 13077340 17455406 19616010 26183109 34910812 39232020 43638515 52366218 87277030 104732436 130915545 174554060 200737169 261831090 401474338 523662180 602211507 802948676 1003685845 1204423014 2007371690 2408846028 3011057535 4014743380 6022115070 12044230140